Fluid-structure coupling of a turbulent flow and a generic blimp structure at high angle of attack

• Autores: Eric Schall, Kamal El Omari, Mohamed Amara, Bruno Koobus , Alain Dervieux, J.-P. Dumas
• Localización: Ninth international conference Zaragoza-Pau on applied mathematics and statistics: Jaca (Spain). September 19-21, 2005 / coord. por Monique Madaune-Tort , 2006, ISBN 84-7733-871-X, págs. 369-376
• Idioma: inglés
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• Resumen

  • We present here a numerical study of the aeroelastic behavior of a pressurized flexible airship (blimp) during a flight with an angle of attack of 20. The airship is represented by a 6:1 prolate spheroid generic geometry . The air flow is fully turbulent and is modeled by a LES model. We solve the Navier-Stokes three-dimensional compressible equations in their ALE form. The spatial discretization of these equations is achieved on unstructured tetrahedral meshes by a Finite Volumes/Finite Elements (FV/FE) mixed formulation.

    This fluid simulation is coupled to a structure solver by a staggered algorithm.

    We investigate a flexible pressurized hull compared to a non-pressurized one